Xerox PHASER 7500 Service Manual

Phaser 7500 Printer Service Manual 3-219
Error Messages and Codes
Transparency Sensor Fail
An abnormal value was detected from the Transparency Sensor.
Applicable Chain-Link Code
• 077-602: OHP Sensor Fail
Initial Actions
• Power cycle the printer.
• If the problem persists, follow the procedure below.
1. Perform the following steps:
• Check the Transparency Sensor and Reflective Prism for contamination
and improper installation.
• Is the transparency used out of specification (refer to “Paper and Tray
Specifications” on page 1-19)?
• Perform the OHP Sensor test in Diagnostics.
• Check the connection between the Transparency Sensor J161 and the
Motor Drive PWB J515 for open circuit, short circuit, and poor contact.
2. If no problems are found, replace the following parts in sequence:
• Motor Drive PWB (REP 18.13, page 8-204)
• MCU PWB (REP 18.12, page 8-202)
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ MCU PWB, PL18.3.6
■ Motor Drive PWB, PL18.3.7

Xerox PHASER 7500 Specifications

General

Max Print Resolution	1200 x 1200 dpi
Monthly Duty Cycle	150, 000 pages
Standard Paper Capacity	550 sheets
Duplex Printing	Optional
Standard Memory	256 MB
Network Connectivity	10/100/1000Base-T Ethernet
Supported Operating Systems	Windows, Mac OS, Linux
Max Paper Capacity	2, 100 sheets
Connectivity	USB 2.0, Ethernet
PDL	PostScript 3, PCL 6, PDF
Print Speed	Up to 35 ppm